The population of bacteria in a culture can be modeled using exponential growth. The initial number of bacteria in the culture is 125. After 3.5 hours, there are 471 bacteria in the culture. a. Find the growth rate constant k for the exponential growth model. Then state the growth equation A = Apekt for this culture. mill Sangammas Bikernes wit), men good pind b. How many bacteria would be in the culture after 7 hours? Round to the nearest whole number. 5. A freshly brewed pot of tea is on a table in a 76 room. The tea starts at 180 then cools to 150 after 10 minutes. a. Use Newton's Law of Cooling T = C + (To-C)ekt to find an equation modeling the situation. Be sure to solve for k! b. After how many minutes will the tea cool to 100?